Khan Academy
Khan Academy: Arc Length
A practice for students to find the length of an arc. Practice includes video instructions to give helpful hints.
Texas Education Agency
Texas Gateway: Determining Arc Length
Given a problem situation involving sectors of circles, the student will use proportional reasoning to solve the problem.
CK-12 Foundation
Ck 12: Geometry: Arcs and Angles Study Guide
This study guide on arcs and angles covers key vocabulary, arc measurement in degrees and radians, congruent arcs, bisecting arcs, and the angles on, inside, and outside a circle. Also covers formulas and theorems. It is available for...
Khan Academy
Khan Academy: Arc Measure
Use the fact that the arc measures of a circle must sum to 360 degrees to find missing arc measures. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Khan Academy
Khan Academy: Arc Measure With Equations
Use the fact that the arc measures of a circle must sum to 360 degrees to find missing arc measures by setting up equations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
CK-12 Foundation
Ck 12: Trigonometry: Length of an Arc
[Free Registration/Login may be required to access all resource tools.] Definition and measurement of an arc on a circle,
CK-12 Foundation
Ck 12: Geometry: Arcs in Circles
[Free Registration/Login may be required to access all resource tools.] This concept teaches students properties of arcs and central angles in circles. Students examine guided notes, review guided practice, watch instructional videos and...
Geometry Help
Geometry Help: Arcs, Angles, and Sectors
Explains the basic concept of arcs, angles, and sectors with step-by-step instructions and methods for solving specific problems on your own relating to this topic.
Khan Academy
Khan Academy: Radians & Arc Length
Solve problems related to radians and arc length like finding an arc length given the central angle and radius.
CK-12 Foundation
Ck 12: Interactive Geometry: 8.9 Arc Length
Recall that a portion of a circle is called an arc. One way to measure an arc is with degrees.
CommonLit
Common Lit: Joan of Arc: France's Young Tragic Hero
A learning module that begins with "Joan of Arc: France's Young Tragic Hero" by David White, accompanied by guided reading questions, assessment questions, and discussion questions. The text can be printed as a PDF or assigned online...
Sumanas
Sumanas Inc: Discovery Biology: Reflex Arc
Why do you pull your hand away from a hot stove? Use this tutorial to enhance your understanding of reflex arcs.
Texas Instruments
Texas Instruments: Inscribed Angles Intercepting the Same Arc
Students investigate the properties of angles inscribed in a circle. They use the drawing and measurement tools of Cabri Jr. to draw and measure certain angles, and establish the relationship between angles that intercept the same arc.
CK-12 Foundation
Ck 12: Arcs in Circles
[Free Registration/Login Required] Students use the interactive circle to change the measure of the arcs. Click learn more to watch a video and click challenge me to answer a practice question.
Other
The Cave of Chauvet Pont D' Arc
The only way to see the prehistoric cave paintings at Chauvet-Pont-D' Arc, France is to take the virtual tour offered here. Learn about the discovery of the caves and the archaeological evidence found that allows great insight into the...
Math Open Reference
Math Open Reference: Angle Measure of an Arc
Learn about the angle measure of an arc with this handy reference tool. Provides a detailed definition, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Metropolitan Museum of Art
Metropolitan Museum of Art: Maude Adams (1872 1953) as Joan of Arc
View an image of "Maud Adams as Joan of Arc" with descriptive text beneath it. Click the image to enlarge it.
CK-12 Foundation
Ck 12: Arcs in Circles
[Free Registration/Login Required] Students will explore arcs in circles with this interactive activity. Click learn more to watch a video and click challenge me to answer a practice question.
Wolfram Research
Wolfram Math World: Arc Length
This site from Mathworld.com defines arc length and provides formulas to find arc length in cartesian and polar coordinates, and in three dimensions.
Other
International Joan of Arc Society
The International Joan of Arc Society at Southern Methodist University is a useful starting point for plowing through the scholarly research about St. Joan. Compiled at this portal-like site are transcriptions of historical documents,...
Patsy Stevens
Garden of Praise: Joan of Arc: Patron Saint of France
A short retelling of the life of Joan of Arc (1412-1431 CE) written for beginning readers.
Ducksters
Ducksters: Biography: Joan of Arc for Kids
Kids learn about the biography of Joan of Arc who was a French heroine who helped defeat the English but was burned at the stake.
Alabama Learning Exchange
Alex: Arc Lengths and Sector Areas
Students will work in cooperative groups to discover the relationships between arc length, central angle measure, and circumference. They will also discover the relationship between circle area, central angle measures, and sector area....
Children's Books Online
Children's Books Online: Joan of Arc
"Joan of Arc", written in 1918 by M. Boutet De Monvel, has been digitized and made available by the Rosetta Project. This 27 page book is appropriate for advanced readers.
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